Add genres to musicians and bands

Add genre select box to musicians page
Change musician edit form to remove duplicate locations input
Reorganize musician edit form as well
Add seed file for genres
Add migrations for musician
Add genre_id to bands
clean up files
rename songs to musician songs
add genre id columns
Update musician and band show page to include genre
add radio partial but comment it out because of nil data set
Merge pull request #26 from modernlegend/musician_show

Update musician and band show page to include genre
clean up stylesheets in assets pipeline
fix radio player
merge conflicts
Merge pull request #27 from modernlegend/metrostyle

clean up stylesheets in assets pipeline
fixes to make soundcloud login work
merge fix